Which environmental concern became a more public issue in the 1970's due to media attention?

In the 1970s, the environmental concern of air and water pollution gained significant public attention, largely due to increased media coverage of incidents like the Cuyahoga River catching fire in 1969 and the Santa Barbara oil spill in 1969. This heightened awareness led to widespread public demand for environmental reforms, culminating in the establishment of Earth Day in 1970 and the creation of key legislation such as the Clean Air Act and the Clean Water Act. The media played a crucial role in highlighting the detrimental effects of industrialization on the environment, prompting a societal shift towards environmental activism and policy changes.